| Documentation |
State |
Type |
| Abrams, L. 1960. An illustrated flora of the Pacific States. Stanford University Press, Stanford. |
CA |
Literature |
| California Native Plant Society. Inventory of rare and endangered plants. |
CA |
Literature |
| Hickman, J.C. (ed.). 1993. The Jepson manual. University of California Press, Berkeley. |
CA |
Literature |
| Monroe, Gary. 21 May 2006. Field observation validated by NPDC staff. |
CA |
Observation |
| Oregon Natural Heritage Program. |
OR |
Literature |
| Rollins, R.C. 1993. The Cruciferae of Continental North America. Stanford University Press, Stanford. |
OR |
Literature |
| Specimen Management System for California Herbaria (SMASCH). |
CA |
Literature |
| Straw, R. Jackson and Josephine County checklist. Unpublished and undated. |
OR |
Literature |
| Wilken, Dieter. Personal communication. |
CA |
Literature |
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